I am also searching my great, great, great grandfather Antoni ( Jan )Cybulski , who was living in Bielawy, West Prussia.
Unfortunately, there are many Bielawys in what was once West Prussia.
1 in Torun, 6 in Bydgoszcz, 1 in Wloclawek., etc...
The boundary for West Prussia and Poland / Russia, was moved many times between Torun and Wloclawek, which complicates the search.
Dolecki from Wloclawek, Jozefow, and Pruszkow.
Nakonowski from Wloclawek.